Nie standaard flens
Non-standard flanges will only be used in cases where pressure, temperature and size requirements exceed the capabilities of standard flanges. Keep in mind that non-standard flanges require calculation, design and special manufacturing procedures, which is why they are chosen only as a last resort. The most common such applications are large equipment flanges and heat exchangers body flanges.
Non-standard flanges are designed and calculated according to ASME VIII Div.1 Appendix 2 and Appendix S, and according to ASME VIII Div.2 part 4.16.
Design criteria
Rules for the design of bolted flange connections as described in Div.1 Appendix 2 apply to flanges with gaskets placed entirely within the circle enclosed by the bolt holes and with no contact outside this circle.
This method is applicable to circular flanges under internal pressure and takes into account only hydrostatic end loads and gasket seating loads. Rules have been further modified so that they can be applied to the design of flanges under external pressure, reverse flanges and flanges with nut stops.
Design procedure for large diameter, low pressure flanges shall be supplemented by methods other than the code e.g.: check flange rotation. Flanges greater than 60 inches (1524 millimeters) inside diameter and designed for up to 100 psig (689 KPa) pressure fall under this category.
Grootte
Nie-standaard flens: 1/4 ″ -160 ″
DN8-DN4000
MATERIAAL:
Koolstofstaal: ASTM A105, ASTM A105N, GB 20, C22.8.
Legeringsstaal: ASTM / ASME A182 F1-F12-F11-F22- F5-F9- F91
Vlekvrye staal: ASTM / ASME A182 F304-304L-304H-304LN-304N
ASTM / ASME A182 F316-316L-316H-316LN-316N-316Ti
ASTM / ASME A182 F321-321H, F347-347H
Lae temperatuur staal: ASTM / ASME A350 LF2.
Hoëverrigtingstaal: ASTM / ASME A694 F42, F52, F56, F60, F65, F70
Flenskant-tipe
Amerika-reeks: plat gesig (FF), verhoogde gesig (RF), tong (T), groef (G), vroulik (F), manlik (M), ringtipe gewrigsgesig (RJ / RTJ)
Europa-reeks: tipe A (plat gesig), tipe B (verhoogde gesig), tipe C (tong), tipe D (groef), tipe E (spigot), tipe F (uitsparing), tipe G (O-ring spit), Tipe H (O-ringgroef)
Druk
Amerika-reeks: Klas 150, Klas 300, Klas 600, Klas 900A, Klas 1500, Klas 2500.
Europa-reeks: PN2.5, PN6, PN10, PN16, PN25, PN40, PN63, PN100, PN160, PN250, PN320, PN400.
STANDAARD
Ons nie-standaard flens kan op grond van die gemeenskaplike standaard vervaardig word, en wysig dit volgens ons kliënte se vereiste.
ASME ANSI B16.5, ASME ANSI B16.47.
API 605, API 6L.
MSS SP 44
CSA Z245.12
EN1092-1, EN1759-1.
DIN2630, DIN2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638.
BS1560, BS 4504, BS 10.
AFNOR NF E29-200-1
ISO7005-1
AS2129
JIS B2220
UNI 2276. UNI 2277.UNI 2278 .UNI 6089 .UNI 6090
Industriële prosesse
Die smee, bewerking.
Aansoek vir nie-standaard flens
Aardgas, chemikalieë, petroleum, skeepsbou, mariene, papiervervaardiging, metallurgie, elektrisiteit, krag, ketel, ens.
